EP 1805751 A1 20070711 - METHODS, SYSTEMS AND COMPUTER PROGRAM PRODUCTS FOR DETECTING MUSICAL NOTES IN AN AUDIO SIGNAL
Title (en)
METHODS, SYSTEMS AND COMPUTER PROGRAM PRODUCTS FOR DETECTING MUSICAL NOTES IN AN AUDIO SIGNAL
Title (de)
VERFAHREN, SYSTEME UND COMPUTERPROGRAMMPRODUKTE ZUR DETEKTION VON MUSIKNOTEN IN EINEM AUDIOSIGNAL
Title (fr)
PROCEDES, SYSTEMES ET PRODUITS DE PROGRAMMES INFORMATIQUES POUR DETECTER DES NOTES MUSICALES DANS UN SIGNAL AUDIO
Publication
Application
Priority
- US 2005034527 W 20050927
- US 97785004 A 20041029
Abstract (en)
[origin: US2006095254A1] Methods, system and/or computer program products for detection of a note include receiving an audio signal and generating a plurality of frequency domain representations of the audio signal over time. A time domain representation is generated from the plurality of frequency domain representations. A plurality of edges are detected in the time domain representation and the note is detected by selecting one of the plurality of edges as corresponding to the note based on characteristics of the time domain representation.
IPC 8 full level
G10H 1/00 (2006.01); G10L 25/18 (2013.01); G10L 25/51 (2013.01); G10L 25/90 (2013.01)
CPC (source: EP US)
G10H 1/0008 (2013.01 - EP US); G10H 2210/066 (2013.01 - EP US); G10H 2210/086 (2013.01 - EP US)
Citation (search report)
See references of WO 2006049745A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
US 2006095254 A1 20060504; US 7598447 B2 20091006; CA 2585467 A1 20060511; EP 1805751 A1 20070711; JP 2008518270 A 20080529; US 2010000395 A1 20100107; US 8008566 B2 20110830; WO 2006049745 A1 20060511
DOCDB simple family (application)
US 97785004 A 20041029; CA 2585467 A 20050927; EP 05807553 A 20050927; JP 2007538927 A 20050927; US 2005034527 W 20050927; US 55692609 A 20090910